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Filed 001:. 19. I929 lNVENTOH. V W/LL/AMC- EP-STE/N.

ATTORNEY Ratented @ct. 1931i l dzt ttd GAS BURNER AND THE Application filed @otoher it), 3929., Serial do. 469395:

This invention relates to gas burners and the like and more particularly to anautomatically controlled gas burner.

Certain types of gas burners have separated fuel outlets, one of which is arranged adjacent to a pilot burner and the other of which is spaced such a distance from the first mentioned outlet that the gas escaping therefrom will not always be ignited from the flame at said first mentioned fuel outlet. W hen the fuel at the second outlet fails to ignite the burner operates at a reduced efficiency. the fuel escaping from the second outlet is wasted and under certain conditions, there is a possibility of an explosion.

Une object of the present invention is to provide such a burner with. means for positively causing the ignition of the gas at the second outlet whenever the gas at the first outlet is ignited.

A further object of the invention is to provide such a device which will be very simple in its construction and operation and can be produced at a low -cost.

Other objects of. the invention will appear as the apparatus is described in detail.

In the accompanying drawings Fig. 1 is a sectional view of a portion of a combined incinerator and water heater showing the invention applied thereto; and Fig. 2 is a plan View of a portion of a burner provided with my igniting device.

In these drawings T have illustrated one embodiment of my invention but it will be understood that the device may take various forms, may be used with burners of various kinds, and may be arranged in various positions with relation to the burner without departing from the spirit of the invention.

The invention is here shown in connection with a combined water heater and incinerator which comprises a water tank 5 having a central vertical opening 6 in which is supported a hopperv 7 to receive material to be burned. Arranged below the tank and the hopper is a burner 8 which is preferably annular in form and is so arranged that the flame therefrom will contact with both the hopper and thetank. The burner is connected by a conduit 9 with one end of a valve casing 10, the other end of which is connected with the main gas supply pipe ll.

interposed in the main gas supply pipe 11 1s an automatic valve 12 which is controlled by a thermostat 13 extending into the water tank 5, so that the gas supply to the main 1 burner 8 will be controlled in accordance with the temperature of the water in the tank. Arranged at one side of the main burner is a pilot burner which may be of any suitable character but which is here shown as comprising a casing 14% supported by a tube 15 which in turn is mounted on the valve casing l0. Arranged within the casing is a bimetallic disk 16 which is connected by a rod 17 with a valve 18 arranged in the casing to control the flow of gas from the main supply pipe 11 to the conduit 9. The casing 14: of the pilot burner has a fuel outlet, here shown as a burner tip 19. The tube serves also to supply fuel to the pilot burner and it is connected by a pipe 20 with the main gas supply from the outer side of the automatic valve 12 so that gas will always be supplied to the pilot burner. The burner tip 19 has fuel outlets arranged to direct jets of flame against the inner wall of the casing it and thus heat the same. When the disk has been heated to a predetermined degree it will buckle in a direction to open the valve 18. Should the pilot burner be extinguished the cooling of the disk will cause it to buckle in the opposite direction and close the valve 18. vThe pilot burner is enclosed in a housing 21 to protect the same against draft, dirt or injury and this housing has an opening 22 arranged in line with the fuel outlet for the pilot burner and directed toward the main burner 8.

As, has been stated the main burner is preferably annular in form and has inner and outer circumferential fuel outlets, as shown at 23 and 24. The fuel outlets may be of any suitable characterand are here shown as continuous slots formed between the 11 peer and lower portions of the burner but 0 viously each fuel outlet may, if desired, consist of a series of orifices so arranged that the flame from one orifice will ignite the fuel from an adjacent orifice, as is customary in gas burners.

fuel outlets from being clogged by ashes or other matter dropped from the hopper 7, the top of the burner is solid, as shown at 24a, and is of greater width than the lower portion of the burner so that the lateral portions thereof overhang the fuel outlets to prevent foreign matter from entering the same. The outer fuel outlet at is arranged adjacent to the pilot burner so that the fuel therefrom will be ignited from that burner but the inner fuel outlet 23 is spaced such a distance from the outer fuel outlet that the fuel escaping therefrom will not always be ignited from the flame at the outer outlet. To overcome this objectionable feature to the burner and to positively insure the ignition of the fuel at both outlets of the main burner I have provided an igniting device, herein called a supplemental burner, which is so arranged with relation to the main burner and to the pilot burner that the fuel escaping therefrom will be ignited burner and the flame will be carried across the main burner to a point adjacent to the inner outlet thereof, thus insuring the ignition of the gas at the inner outlet. This supplemental burner may take various forms and the fuel may be supplied thereto in various ways but preferably it is mounted directly upon the main burner adjacent to the pilot burner and receives its fuel from the main burner. As here shown, it comprises a lower part 25 formed integral with the upper portion of the main burner and having within the same a fuel chamber 26 which is connected with the main burner through openings 27, thus permitting a portion of the fuel in the main burner to pass to the supplemental burner. Arranged above the part 25 of the supplemental burner is a top portion 28 which is supported in spaced relation to the upper edge of the lower portion 25 so as to provide a circumferential slot or fuel outlet 29 which extends entirely about the supplemental burner and one side of which is arranged adjacent to the pilot burner and the other side of which is arranged adjacent to the inner outlet 23 of the main burner. Obviously the fuel outlet need not comprise a continuous slot but may be of any character which will cause the fuel escaping therefrom to be ignited about the entire cireuniference of the supplemental burner. As a result when fuel is admitted to the main burner it is also admitted to the supplemental burner and the fuel escaping from the supplemental burner will be ignited simultaneously with the ignition of the fuel escaping from the outer fuel outlet 2 of the main burner. Inasmuch as the fuel outlet for the supplemental burner extends entirely across the closed top of the main'burner the flame will be carried to a point adjacent to the inner fuel outlet 23 of the main burner, thus To prevent the from the pilot causing the fuel from said inner outlet to be ignited.

While I have shown and described one e1nbodiment of my invention I wish it to be understood that I do not desire to be limited to the details thereof as various modifications may occur to a person skilled in the art.

Having now fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In an apparatus comprising a main burner having separated fuel outlets, and a pilot burner arranged adjacent to one of said fuel outlets, a supplemental burner having a fuel outlet arranged adjacent to said pilot burner and to the other fuel outlet of said main burner.

2. In an apparatus comprising a main burner having separated fuel outlets, and a pilot burner arranged adjacent to one'of said fuel outlets, a supplemental burner having a fuel outlet arranged adjacent to said pilot burner and to the other fuel outlet of said main burner, and automatically controlled means for supplying fuel simultaneously tosaid main burner and said supplemental burner.

3. In an apparatus comprising a main burner having separated fuel outlets and a pilot burner arranged adjacent to one of said fuel outlets, a supplemental burner connected with said main burner to receive fuel therefrom and having a fuel outlet extending from a point adjacent to said pilot burner to a point adjacent to the other fuel outlet of said main burner.

4. In an apparatus comprising a main burner having separated fuel outlets, and a pilot burner arranged adjacent to one of said fuel outlets, a supplemental burner carried by said main burner and having communication therewith to receive fuel therefrom and also having a fuel outlet arranged ad acent to saidpilot burner and adjacent to the other fuel outlet of said main burner, and means for supplying fuel simultaneously to said main burner and said supplemental burner.

5. In an apparatus comprising an annular main burner having a closed top and inner and outer circumferential fuel outlets, and a )llOt burner arranged adjacent to said outer tucl outlet, a sup lemental burner supported above said main burner adjacent to said pilot burner and having a fuel outlet extending across the top of said main burner, and means for supplying fuel simultaneously to said main burner and said supplemental burner.

(5. In an apparatus comprising an annular main burner having a closed top and inner and outer circumferential fuel outlets, and a pilot burner arranged adjacent to said outer fuel outlet, a supplemental burner supported above said main burner and connected therewith to receive fuel therefrom and having a fuel outlet extending from a point adjacent to said pilot burner to a point acent to the inner fuel outlet of said main burner, and means 5 to supply fuel simultaneously to said main burner and said supplemental burner.

7. In an apparatus comprising an annuv lar main burner having a closed top and inner and outer circumferential fuel outlets, and a n pilot burner arranged adjacent to said outer fuel outlet, a supplemental burner comprising a part formed integral with the top of said main burner, said top of said main burner having an opening through which fuel s is supplied to said supplemental burner, and

said supplemental burner having a fuel outlet extending from a point, adjacent to-said pilot burner to a point adjacent to said inner fuel outlet of said main burner.

go 8. In an apparatus of the character described, an annular burner having a closed top and inner and outer circumferential fuel outlets a supplemental burner carried by said annular burner and having a fuel outlet ex- 2 tending across the top of said annular burner, means for supplying fuel simultaneously to said burners, a housing having an opening adjacent to the outer fuel outlet of said annular burner and to said supplemental burnw er, and a pilot burner Within said housing and having a fuel outlet arranged to project a flame through the opening in said housing.

lln testimony whereof, I afix my signature hereto.

'3 C. EPSTEIN. 

